Subject: Re: [ecasound] Re: [linux-audio-user] 24 bit replacement for SOX
From: Kai Vehmanen (kvehmanen_AT_eca.cx)
Date: Tue Dec 21 2004 - 04:12:48 EET
Hello all,
On Fri, 17 Dec 2004, Jesse Chappell wrote:
>> I've received some bug reports about
>> resampling with the ecasound+libsamplerate combo, and the 44.1<->48
> Kai, I did notice that the SRC code in ecasound uses the simple
> API of libsamplerate, but it expects to use it blockwise with
> a continuous audio stream. The more advanced APIs maintain state
> between calls that I think are necessary when using it with a stream.
thank you for pointing this out to me -- this was indeed causing problems.
If anyone wants to help in testing, please try the snapshot at:
http://ecasound.seul.org/download/snapshots/ecasound-2.3.6-cvs-20041221.tar.gz
# the basic syntax is:
ecasound -f:16,2,44100 -i resample,auto,foo96khz.wav -o alsa
# with samplerate's 'SRC_SINC_BEST_QUALITY' quality
ecasound -f:16,2,44100 -i resample-hq,auto,foo96khz.wav -o alsa
Where 16(bit), 2(ch) and 44100(Hz) are the target audio parameters. This
should work with any ALSA/OSS, JACK, wav/aiff, ogg/mp3/flac/etc output.
-- http://www.eca.cx Audio software for Linux!
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